Views Export just provided export feature for Views, period. You can call Views Export is a small part of Views Bonus Pack and extended version of Views Export XLS.

Views Export will focus on these features:
1. Support most required file type: csv, txt, xls, xml, etc
2. Support large data, suppose we have 20K rows
3. Able to compress exported file
4. Real "export" to file type, not just convert to CSV and rename into XLS file!